All categories

2 years ago

A clock cog rotates 150 degrees in 20 minutes. How far will far will the same cog rotate in 70 minutes

Mathematics

2 answers:

Alex2 years ago

8 0

Answer:

525 degrees

Step-by-step explanation:

Aleksandr [31]2 years ago

5 0

I think it’s 450
I am not sure but yeah ;)

You might be interested in

The mean value of land and buildings per acre from a sample of farms is $1400, with a standard deviation of $100. The data set h

Harman [31]

Answer:

B, D, and F :)

Step-by-step explanation:

3 0

4 years ago

I’ll give brainliist

34kurt

Step-by-step explanation:

The line is

j --------K----------M---------N---------L

6. 4. 4. 4

JN = 14

KM = 4

KM = MN = LN =4

JK = 14 - (KM+MN)

JK = 14 - 8 = 6

JK = 6

MN = 4

LJ = 18

KN = 8

MJ = 10

NL = 4

3 0

3 years ago

Find the slope of the curve below at the given points. Sketch the curve along with its tangents at these points. R = sin 2 theta

mr Goodwill [35]

Answer:

<u> </u><u>-1 </u>

Step-by-step explanation:

Given that:

r = sin 2θ , θ = ± π/4 , ± 3π/4

Recall that:

x = r cosθ

y = r sinθ

The differential of y with respect to x

$\dfrac{dy}{dx} = \dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}}$

$\dfrac{dy}{dx} =\dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}} = \dfrac{ r cos \theta + sin \theta* \dfrac{dr}{d \theta} } {\dfrac{dr}{d \theta} *cos \theta- sin \theta \ r}$

at θ = π/4 , r = sin π/2

r = 1

$\dfrac{dy}{dx} = \dfrac{ r cos \theta + 2 cos (2 \theta)*sin \ \theta } {2 \ cos (2 \theta) *cos \theta- sin 2 \theta * sin \theta}$

where;

θ = π/4

$\dfrac{dy}{dx} = \dfrac{ 1 \times cos (\dfrac{\pi}{4}) + 2 cos (\dfrac{\pi}{2})*sin (\dfrac{\pi}{4}) } {2 \ cos (\dfrac{\pi}{2})*cos (\dfrac{\pi}{4})- sin (\dfrac{\pi}{2}) * sin (\dfrac{\pi}{4})}$